Photoproduction of J/ ψ in pp and PbPb Collisions at Leading Order

作     者：ZHU Jia-Qing LI Yun-De 朱佳庆;李云德

作者机构：Department of physicsYunnan UniversityKunming 650091 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2012年第29卷第8期

页      面：65-68页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10665003 and 11065010 

主　　题：calculation processes energy 

摘      要：The production of J/ψ originating from photoproduction processes in pp and PbPb collisions at leading order is *** use the color singlet and color octet mechanisms for heavy quarkonium production to deal with the direct photon processes,and consider fragmentation *** shadowing and iso-spin of the nucleus are also considered in our *** numerical results show that the modification of photoproduction processes for J/ψ production becomes obvious in the large pT region at LHC energy.